Magic Eye Audio Spectrum Display: 
Sylvain, AKA MicroSyl, wanted to build an audio spectrum display using old “magic eye” vacuum tubes: After doing some project with vintage tube I got the idea of doing an audio spectrum display with “magic eyes tube” and driving those with an AVR MCU with Fast Fourier Transform. The enclosure [...]
Read the full article on MAKE
Sylvain, AKA MicroSyl, wanted to build an audio spectrum display using old “magic eye” vacuum tubes: After doing some project with vintage tube I got the idea of doing an audio spectrum display with “magic eyes tube” and driving those with an AVR MCU with Fast Fourier Transform. The enclosure [...]Read the full article on MAKE
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